11th Standard Syllabus & Materials
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Published on: 10/11/2020
11th Standard Chemistry Thermodynamics English Medium Free Online Test One Mark Questions with Answer Key 2020 - 2021
Download Tamil Nadu 11th Standard Chemistry question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.
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1.
The heat of neutralisation of strong acid and strong base is __________
+57.32 KJ
+75.32 KJ
-75.32 KJ
-57.32 KJ
2.
Heat absorbed at constant volume is measured in ____________ calorimeter.
Coffee cup
Differential scanning
Bomb
Adiabatic
3.
SI unit of molar heat capacity is ___________
J mol-1
KJ mol-1
JK-1 mol-1
JK-1
4.
_________ is an intensive property
internal energy
volume
temperature
mass
5.
Pick out the true statement(s).
(i) q and are path functions
(ii) q + w is a state function
Only (i)
Only (ii)
Both (i) and (ii)
Both are incorrect statements
6.
For a cyclic process involving isothermal expansion of an ideal gas.
∆U=qV
∆U=w
∆U= q + w
∆U=0
7.
The gravitational work done by an object is __________
Qv
fx
PV
mgh
8.
Which among the following is a state function?
Pressure
Enthalpy
Heat
Both (a) and (b)
9.
Which among the following is not a state function?
Pressure
Volume
Temperature
Work
10.
For an isothermal process _____
q = 0
dV = 0
dT = 0
dP = 0
11.
Which among the following is not an extensive property?
Volume
internal energy
Mass
temperature
12.
________ is an example for closed system.
Solution of CuSO4 in a beaker
A gas contained in a cylinder fitted with piston
Hot water contained in a thermos flask
Tea in a cup
13.
A fundamental goal of thermodynamics is the prediction of __________ of the process.
reversibility
rate
spontaneity
none of these
14.
ΔS is expected to be maximum for the reaction ____________
Ca(S)+ 1/2O2(g) ⟶ CaO(S)
C(S) + O2(g) ⟶ CO2(g)
N2(g) + O2(g) ⟶ 2NO(g)
CaCO3(S) ⟶ CaO(S) + CO2(g)
15.
The correct thermodynamic conditions for the spontaneous reaction at all temperature is ______________
ΔH < 0 and ΔS > 0
ΔH < 0 and ΔS < 0
ΔH > 0 and ΔS = 0
ΔH > 0 and ΔS > 0
16.
The value of ΔH for cooling 2 moles of an ideal monatomic gas from 125° C to 25° C at constant pressure will be [given Cp = \(\frac{5}{2}\)R] ____________.
- 250 R
- 500 R
500 R
+ 250 R
17.
Change in internal energy, when 4 kJ of work is done on the system and 1 kJ of heat is given out by the system is ______________
+1 kJ
- 5 kJ
+3 kJ
- 3 kJ
18.
C(diamond) ) ⟶ C(graphite), ΔH = -ve, this indicates that ___________
graphite is more stable than diamond
graphite has more energy than diamond
both are equally stable
stability cannot be predicted
19.
Heat of combustion is always ____________
positive
negative
zero
either positive or negative
20.
All the naturally occurring processes proceed spontaneously in a direction which leads to _______________
decrease in entropy
increase in enthalpy
increase in free energy
decrease in free energy
1.
(d)
-57.32 KJ
2.
(c)
Bomb
3.
(c)
JK-1 mol-1
4.
(c)
temperature
5.
(c)
Both (i) and (ii)
6.
(a)
∆U=qV
7.
(d)
mgh
8.
(d)
Both (a) and (b)
9.
(d)
Work
10.
(c)
dT = 0
11.
(d)
temperature
12.
(b)
A gas contained in a cylinder fitted with piston
13.
(c)
spontaneity
14.
(d)
CaCO3(S) ⟶ CaO(S) + CO2(g)
15.
(a)
ΔH < 0 and ΔS > 0
16.
(b)
- 500 R
17.
(c)
+3 kJ
18.
(a)
graphite is more stable than diamond
19.
(b)
negative
20.
(d)
decrease in free energy
11th Standard Syllabus & Materials
11th Standard
TN 11th Tamil பீடு பெற நில் - செய்யுள் - காவடிச்சிந்து Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
TN 11th Tamil பீடு பெற நில் - உரைநடை - மலை இடப்பெயர்கள் : ஓர் ஆய்வு Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
TN 11th Tamil மாமழை போற்றுதும் - துணைப்பாடம் - யானை டாக்டர் Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
TN 11th Tamil மாமழை போற்றுதும் - செய்யுள் - ஐங்குறுநூறு Important Questions And Answers Study Material - QB365 Set A
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